A university council wants to determine the need for a new staff room. The council conducted a survey of the staff by randomly speaking to 860 staff members out of 2,844 staff members. The council found that 70% of those surveyed were in favor of building a new staff room. Assuming a 90% confidence level, which of the following statements holds true?

• As sample size is appropriately large, the margin of error is +- 0.026.

• As the sample size is too small, the margin of error cannot be trusted.

• As the sample size is appropriately large, the margin of error is +- 0.036.

• As the sample size is too small, the margin of error is +- 0.026.​